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A pure-java CIFS/SMB client library
/* jcifs smb client library in Java
* Copyright (C) 2000 "Michael B. Allen"
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package jcifs.internal.smb1.trans;
import java.util.Enumeration;
import jcifs.Configuration;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.smb1.ServerMessageBlock;
import jcifs.internal.util.SMBUtil;
import jcifs.smb.FileEntry;
/**
*
*/
public abstract class SmbComTransactionResponse extends ServerMessageBlock implements Enumeration {
// relative to headerStart
static final int SETUP_OFFSET = 61;
static final int DISCONNECT_TID = 0x01;
static final int ONE_WAY_TRANSACTION = 0x02;
private int pad;
private int pad1;
private boolean parametersDone, dataDone;
protected int totalParameterCount;
protected int totalDataCount;
protected int parameterCount;
protected int parameterOffset;
protected int parameterDisplacement;
protected int dataOffset;
protected int dataDisplacement;
protected int setupCount;
protected int bufParameterStart;
protected int bufDataStart;
int dataCount;
byte subCommand;
volatile boolean hasMore = true;
volatile boolean isPrimary = true;
byte[] txn_buf;
/* for doNetEnum and doFindFirstNext */
private int status;
private int numEntries;
private FileEntry[] results;
protected SmbComTransactionResponse ( Configuration config ) {
super(config);
}
protected SmbComTransactionResponse ( Configuration config, byte command, byte subcommand ) {
super(config, command);
this.subCommand = subcommand;
}
/**
* @return the dataCount
*/
protected final int getDataCount () {
return this.dataCount;
}
/**
* @param dataCount
* the dataCount to set
*/
public final void setDataCount ( int dataCount ) {
this.dataCount = dataCount;
}
/**
* @param buffer
*/
public void setBuffer ( byte[] buffer ) {
this.txn_buf = buffer;
}
/**
* @return the txn_buf
*/
public byte[] releaseBuffer () {
byte[] buf = this.txn_buf;
this.txn_buf = null;
return buf;
}
/**
* @return the subCommand
*/
public final byte getSubCommand () {
return this.subCommand;
}
/**
* @param subCommand
* the subCommand to set
*/
public final void setSubCommand ( byte subCommand ) {
this.subCommand = subCommand;
}
/**
* @return the status
*/
public final int getStatus () {
return this.status;
}
/**
* @param status
* the status to set
*/
protected final void setStatus ( int status ) {
this.status = status;
}
/**
* @return the numEntries
*/
public final int getNumEntries () {
return this.numEntries;
}
/**
* @param numEntries
* the numEntries to set
*/
protected final void setNumEntries ( int numEntries ) {
this.numEntries = numEntries;
}
/**
* @return the results
*/
public final FileEntry[] getResults () {
return this.results;
}
/**
* @param results
* the results to set
*/
protected final void setResults ( FileEntry[] results ) {
this.results = results;
}
@Override
public void reset () {
super.reset();
this.bufDataStart = 0;
this.isPrimary = this.hasMore = true;
this.parametersDone = this.dataDone = false;
}
@Override
public boolean hasMoreElements () {
return this.errorCode == 0 && this.hasMore;
}
@Override
public SmbComTransactionResponse nextElement () {
if ( this.isPrimary ) {
this.isPrimary = false;
}
return this;
}
@Override
protected int writeParameterWordsWireFormat ( byte[] dst, int dstIndex ) {
return 0;
}
@Override
protected int writeBytesWireFormat ( byte[] dst, int dstIndex ) {
return 0;
}
/**
* {@inheritDoc}
*
* @see jcifs.internal.smb1.ServerMessageBlock#decode(byte[], int)
*/
@Override
public int decode ( byte[] buffer, int bufferIndex ) throws SMBProtocolDecodingException {
int len = super.decode(buffer, bufferIndex);
if ( this.byteCount == 0 ) {
// otherwise hasMore may not be correctly set
readBytesWireFormat(buffer, len + bufferIndex);
}
nextElement();
return len;
}
@Override
protected int readParameterWordsWireFormat ( byte[] buffer, int bufferIndex ) {
int start = bufferIndex;
this.totalParameterCount = SMBUtil.readInt2(buffer, bufferIndex);
if ( this.bufDataStart == 0 ) {
this.bufDataStart = this.totalParameterCount;
}
bufferIndex += 2;
this.totalDataCount = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 4; // Reserved
this.parameterCount = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 2;
this.parameterOffset = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 2;
this.parameterDisplacement = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 2;
this.dataCount = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 2;
this.dataOffset = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 2;
this.dataDisplacement = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 2;
this.setupCount = buffer[ bufferIndex ] & 0xFF;
bufferIndex += 2;
return bufferIndex - start;
}
@Override
protected int readBytesWireFormat ( byte[] buffer, int bufferIndex ) throws SMBProtocolDecodingException {
this.pad = this.pad1 = 0;
if ( this.parameterCount > 0 ) {
bufferIndex += this.pad = this.parameterOffset - ( bufferIndex - this.headerStart );
System.arraycopy(buffer, bufferIndex, this.txn_buf, this.bufParameterStart + this.parameterDisplacement, this.parameterCount);
bufferIndex += this.parameterCount;
}
if ( this.dataCount > 0 ) {
bufferIndex += this.pad1 = this.dataOffset - ( bufferIndex - this.headerStart );
System.arraycopy(buffer, bufferIndex, this.txn_buf, this.bufDataStart + this.dataDisplacement, this.dataCount);
bufferIndex += this.dataCount;
}
/*
* Check to see if the entire transaction has been
* read. If so call the read methods.
*/
if ( !this.parametersDone && ( this.parameterDisplacement + this.parameterCount ) == this.totalParameterCount ) {
this.parametersDone = true;
}
if ( !this.dataDone && ( this.dataDisplacement + this.dataCount ) == this.totalDataCount ) {
this.dataDone = true;
}
if ( this.parametersDone && this.dataDone ) {
readParametersWireFormat(this.txn_buf, this.bufParameterStart, this.totalParameterCount);
readDataWireFormat(this.txn_buf, this.bufDataStart, this.totalDataCount);
this.hasMore = false;
}
return this.pad + this.parameterCount + this.pad1 + this.dataCount;
}
protected abstract int writeSetupWireFormat ( byte[] dst, int dstIndex );
protected abstract int writeParametersWireFormat ( byte[] dst, int dstIndex );
protected abstract int writeDataWireFormat ( byte[] dst, int dstIndex );
protected abstract int readSetupWireFormat ( byte[] buffer, int bufferIndex, int len );
protected abstract int readParametersWireFormat ( byte[] buffer, int bufferIndex, int len ) throws SMBProtocolDecodingException;
protected abstract int readDataWireFormat ( byte[] buffer, int bufferIndex, int len ) throws SMBProtocolDecodingException;
@Override
public String toString () {
return new String(
super.toString() + ",totalParameterCount=" + this.totalParameterCount + ",totalDataCount=" + this.totalDataCount + ",parameterCount="
+ this.parameterCount + ",parameterOffset=" + this.parameterOffset + ",parameterDisplacement=" + this.parameterDisplacement
+ ",dataCount=" + this.dataCount + ",dataOffset=" + this.dataOffset + ",dataDisplacement=" + this.dataDisplacement
+ ",setupCount=" + this.setupCount + ",pad=" + this.pad + ",pad1=" + this.pad1);
}
}
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